Search Me

Recent Posts
 Girls’ Angle Bulletin, Volume 13, Number 1
 Why the Girls’ Angle Bulletin?
 Girls’ Angle Bulletin, Volume 12, Number 6
 Girls’ Angle Bulletin, Volume 12, Number 5
 Girls’ Angle Bulletin, Volume 12, Number 4
 A Student’s Perspective on a Math Collaboration
 Girls’ Angle Bulletin, Volume 13, Number 3
 Happy New Year 2019!
 Girls’ Angle Bulletin, Volume 12, Number 2
 Girls’ Angle Bulletin, Volume 12, Number 1
 Head Mentoring at Girls’ Angle
 Girls’ Angle Bulletin, Volume 11, Number 6
Categories
 applied math (4)
 Contest Math (24)
 gender issues (9)
 math (126)
 Math Education (104)
 Uncategorized (24)
 WIM videos (4)
Archives
 October 2019 (2)
 August 2019 (1)
 June 2019 (1)
 May 2019 (1)
 March 2019 (1)
 February 2019 (1)
 January 2019 (1)
 December 2018 (1)
 October 2018 (1)
 September 2018 (1)
 August 2018 (1)
 June 2018 (1)
 April 2018 (1)
 February 2018 (1)
 January 2018 (1)
 December 2017 (1)
 November 2017 (1)
 October 2017 (1)
 August 2017 (1)
 July 2017 (1)
 June 2017 (1)
 April 2017 (2)
 February 2017 (1)
 January 2017 (1)
 December 2016 (2)
 November 2016 (1)
 October 2016 (2)
 September 2016 (1)
 August 2016 (1)
 June 2016 (1)
 April 2016 (1)
 February 2016 (2)
 January 2016 (1)
 December 2015 (1)
 October 2015 (1)
 September 2015 (1)
 August 2015 (2)
 June 2015 (2)
 May 2015 (1)
 April 2015 (1)
 March 2015 (1)
 February 2015 (2)
 January 2015 (1)
 December 2014 (2)
 October 2014 (1)
 September 2014 (1)
 August 2014 (1)
 July 2014 (1)
 June 2014 (2)
 May 2014 (1)
 February 2014 (1)
 January 2014 (4)
 December 2013 (1)
 November 2013 (2)
 September 2013 (2)
 August 2013 (1)
 July 2013 (2)
 June 2013 (1)
 May 2013 (1)
 April 2013 (3)
 March 2013 (1)
 February 2013 (2)
 January 2013 (2)
 December 2012 (2)
 November 2012 (2)
 October 2012 (3)
 September 2012 (8)
 August 2012 (10)
 July 2012 (7)
 June 2012 (3)
 May 2012 (3)
 April 2012 (7)
 March 2012 (4)
 February 2012 (3)
 December 2011 (4)
 November 2011 (7)
 October 2011 (11)
 September 2011 (13)
 August 2011 (16)
Everything Math
 AIME
 angles
 area
 binomial coefficients
 calculus
 center of mass
 Chebyshev polynomials
 chocolate
 circles
 combinatorics
 complex numbers
 conformal
 crossword
 cyclotomic polynomials
 Deanna Needell
 derivative
 Emily Riehl
 exponentials
 Fermat's little theorem
 Fibonacci
 finite fields
 geometry
 Girls' Angle
 Girls' Angle Bulletin
 induction
 irreducible polynomials
 Jean Pedersen
 Julia Zimmerman
 Kate Jenkins
 Kristin Lauter
 Laura Pierson
 linear algebra
 logarithms
 mass points
 math
 math contests
 Math Doctor Bob
 math event
 math games
 math magazine
 math prize for girls
 math problems
 math videos
 matrices
 Matthew de CourcyIreland
 minimal polynomials
 multiplication
 optimization
 origami
 parabolas
 Pascal's triangle
 permutations
 perspective drawing
 probability
 puzzle
 Pythagorean theorem
 Pythagorean triples
 raffle contest
 roots
 sets
 similarity
 sine
 spheres
 stable marriage problem
 sumit
 telescoping sum
 tennis
 tessellations
 tilings
 triangles
 trigonometry
 variables
 volume
 Whitney Souery
 zigzags
Tag Archives: Pythagorean theorem
Origamiinspired Proof of the Pythagorean Theorem
While working with math teachers Richard Chang and Randi Currier of the Buckingham Browne & Nichols Middle School to come up with problems that use polynomials and rational expressions, we stumbled upon an origamiinspired proof of the Pythagorean theorem that I’d like to … Continue reading
Posted in math, Math Education
Tagged geometry, origami, Pythagorean theorem, rational expressions
Leave a comment
The Pythagorean Theorem: Is It Proven?
Recently at the Girls’ Angle club, a girl asked: Has the Pythagorean theorem been proven? That was a terrific question! Unfortunately, I didn’t have time to discuss it as well or as fully as I would have liked. A lot of … Continue reading
Posted in math
Tagged geometry, math, noneuclidean geometry, proof, Pythagorean theorem, science
2 Comments
Similarity Simplifies
When you see that two figures are similar to each other, everything becomes simpler. Suddenly, you realize that if you understand one figure, you know everything about the other, except for its absolute size. I was observing some students solving … Continue reading
Posted in Contest Math, math, Math Education
Tagged geometry, Pythagorean theorem, similarity
1 Comment